Additive manufacturing ash centralized recovery processing device
By designing a centralized recycling and treatment device for additive manufacturing, the safety risks and frequent manual recycling of ash in additive manufacturing are solved, and the safe, timely and efficient recycling and treatment of ash is achieved, reducing the intensity of manual labor and the frequency of printing equipment shutdowns.
Patent Information
- Application Number
- CN202323590336.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2033-12-27
AI Technical Summary
In the existing additive manufacturing technology, there is a safety risk in the recycling of powder ash slags with active chemical properties such as titanium and aluminum, and manual recycling is frequent, which increases safety hazards and labor intensity.
A centralized recycling and treatment device for additive manufacturing ash is designed, including ash recycling device, ash treatment device, ash recycling pipe and a gas replenishment pipe. The ash is transported to the ash treatment device through the ash recovery pipe, and inert materials and water are added during the transportation process to reduce the risk of flammable and explosiveness of the ash.
The safe, timely and efficient recycling and processing of ash is achieved, and the intensity of manual labor and the frequency of shutdown of printing equipment is reduced, and the work efficiency is improved and safety risks are reduced.
Smart Images
Figure CN222626195U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of additive manufacturing, and relates to ash recovery and processing equipment after printing is completed, in particular to a device for centralized recovery and processing of additive manufacturing ash. Background Art
[0002] SLM equipment and powder feeding additive manufacturing equipment will produce a large amount of powder ash when laser sintering metal powder. At this time, it is necessary to cooperate with the air duct (dust removal system) to recycle the ash. Ash is composed of unburned metal powder. For black slag with relatively active chemical properties such as titanium and aluminum, manual recycling often has the following disadvantages: 1) It is flammable and explosive when in contact with air, and there are safety risks during recycling; 2) The ash produced must be manually stopped for recycling under multi-level protection (fire prevention) preparation; 3) In order to reduce the frequency of manual recycling, the printing equipment is shut down frequently, and the ash is often collected to a certain level before manual recycling, which poses a great safety risk. 4) For high-paced, large-volume part printing, in order to avoid frequent shutdowns to collect ash, the frequency will be reduced by the volume of the ash collection bucket, which also means that dangerous goods are not handled in a timely and effective manner, increasing safety risks. Utility Model Content
[0003] In order to solve the above-mentioned technical problems existing in the background technology, the utility model provides an additive manufacturing ash centralized recovery and processing device with high safety level, reduced labor intensity and reduced shutdown frequency of printing equipment.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A device for centralized recovery and treatment of additive manufacturing ash, characterized in that: the device for centralized recovery and treatment of additive manufacturing ash includes an ash recovery device, an ash treatment device, an ash recovery pipe and an air supply pipe; the ash recovery device is connected to the ash treatment device through the ash recovery pipe; the air supply pipe is connected to the ash recovery device; the ash recovery device is connected to the printing equipment.
[0006] The above-mentioned ash recovery device includes an ash inlet, a second-stage valve and an ash recovery middle barrel; the ash inlet is connected to the printing equipment; the ash inlet is connected to the ash recovery middle barrel through the second-stage valve; the ash recovery middle barrel is connected to the ash treatment device through the ash recovery pipe; the water supply pipe is connected to the ash recovery middle barrel.
[0007] The above-mentioned ash recovery device also includes an inert material conveying pipe which is connected with the ash recovery barrel.
[0008] The above-mentioned ash recovery device also includes a first-stage valve and an ash storage bin; the ash inlet is connected to the ash recovery middle barrel through the first-stage valve, the ash storage bin and the second-stage valve in sequence.
[0009] The above-mentioned ash treatment device includes a slag liquid collection box and an ash filter placed inside the slag liquid collection box; the ash recovery device is connected to the slag liquid collection box through an ash recovery pipe; the ash filter divides the slag liquid collection box into an ash temporary storage chamber and a liquid temporary storage chamber; an ash discharge port is provided at the bottom of the ash temporary storage chamber; and a liquid overflow port is provided on the liquid temporary storage chamber.
[0010] The above-mentioned ash treatment device also includes an ash transmission pipe and an ash collection box; the ash discharge port is connected to the ash collection box through the ash transmission pipe.
[0011] The liquid overflow port is communicated with the inert material conveying pipe.
[0012] The above-mentioned ash treatment device also includes a circulating water tank and a circulating water pipe; the liquid overflow port is connected to the circulating water tank through the circulating water pipe; a circulating water pump is arranged on the circulating water pipe; the circulating water tank is connected to the inert material conveying pipe.
[0013] The above-mentioned ash treatment device also includes a recovery water pump arranged on the ash recovery pipe.
[0014] The above-mentioned ash recovery device is one or more groups.
[0015] The advantages of the utility model are:
[0016] The utility model provides a device for centralized recovery and treatment of additive manufacturing ash, including an ash recovery device, an ash treatment device, an ash recovery pipe and an air supply pipe; the ash recovery device is connected to the ash treatment device through the ash recovery pipe; the air supply pipe is connected to the ash recovery device; the ash recovery device is connected to the printing device. The device for centralized recovery and treatment of additive manufacturing ash provided by the utility model collects the ash generated by the printing device during the printing process directly through the ash recovery device, and then forms a liquid fluid after replenishing water through the water supply pipe, and finally transports it to the ash treatment device through the ash recovery pipe in the form of fluid and is processed by the ash treatment device. The ash recovery device collects the ash generated by different printing devices separately, and finally processes it through a unified ash treatment device, thereby improving the ash recovery and treatment capacity; at the same time, since the collection, transportation and treatment processes of the ash are isolated from the air, and fluid water is added to the ash, the possibility of the ash being flammable and explosive is further reduced. In addition, the ash generated by the printing device can be collected by the ash recovery device in time, so the shutdown frequency of the printing device can be significantly reduced, greatly improving the work efficiency. Obviously, the utility model can deal with the ash and slag produced in metal additive manufacturing in a timely, effective and safe manner, reduce human labor participation, and make the subsequent unified recovery and treatment of hazardous waste more convenient. No human participation is required in the entire process of recovery and treatment, which greatly reduces the intensity of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the device for centralized recovery and treatment of additive manufacturing ash provided by the utility model;
[0018] Figure 2 It is a structural schematic diagram of the ash recovery device adopted by the utility model;
[0019] Figure 3 It is a structural schematic diagram of the ash treatment device adopted by the utility model;
[0020] in:
[0021] 1-printing equipment; 2-ash recovery device; 21-ash inlet; 22-first-stage valve; 23-ash storage bin; 24-second-stage valve; 25-air supply pipe; 26-ash recovery barrel; 3-ash treatment device; 31-circulating water tank; 32-circulating water pipe; 33-recovery water pump; 34-slag liquid collection box; 35-ash filter; 36-ash discharge port; 37-ash transmission pipe; 38-ash collection box; 39-circulating water pump; 4-ash recovery pipe; 5-inert material conveying pipe. DETAILED DESCRIPTION
[0022] See also Figure 1The utility model provides a device for centralized recovery and treatment of ash in additive manufacturing, including an ash recovery device 2, an ash treatment device 3, an ash recovery pipe 4 and an air supply pipe 25; the ash recovery device 2 is connected to the ash treatment device 3 through the ash recovery pipe 4; the air supply pipe 25 is connected to the ash recovery device 2; the ash recovery device 2 is connected to the printing device 1. The device for centralized recovery and treatment of ash in additive manufacturing provided by the utility model directly places the ash recovery device 2 at the bottom of the printing device 1 and is connected to the printing device 1. The ash generated by the printing device 1 during the printing process is directly collected by the ash recovery device 2. After the ash collected by the ash recovery device 2 is supplied with air through the air supply pipe 25, the ash is transported pneumatically, and finally transported to the ash treatment device 3 through the ash recovery pipe 4 in a fluid manner and processed by the ash treatment device 3. Exemplarily, the printing device 1 can be one or more. When there are multiple printing devices 1, multiple ash recovery devices 2 are used to collect the ash generated by different printing devices 1 respectively, and finally the ash is processed by a unified ash processing device 3, thereby improving the ash recovery and processing capacity. That is, the additive manufacturing ash centralized recovery and processing device provided by the utility model can work for one or more printing devices 1 at the same time. Since the collection, transportation, and processing of the ash are isolated from the air, and an inert material conveying pipe 5 is added to the ash, the possibility of the ash being flammable and explosive is further reduced through the inert material in the inert material conveying pipe. In addition, the ash generated by the printing device 1 can be collected by the ash recovery device 2 in a timely manner, so the shutdown frequency of the printing device 1 can be significantly reduced, greatly improving the work efficiency.
[0023] See also Figure 2 The ash recovery device 2 used in the utility model includes an ash inlet 21, a second-stage valve 24 (for example, a ball valve) and an ash recovery middle barrel 26; the ash inlet 21 is connected to the printing device 1; the ash inlet 21 is connected to the ash recovery middle barrel 26 through the second-stage valve 24; the ash recovery middle barrel 26 is connected to the ash treatment device 3 through the ash recovery pipe 4; the inert material conveying pipe is connected to the ash recovery middle barrel 26. The ash generated by the printing device 1 enters the ash recovery middle barrel 26 through the ash inlet 21, and the inert material is added to the ash recovery middle barrel 26 through the inert material conveying pipe, so that the ash and the inert material are mixed. Through the ash recovery middle barrel 26, the mixture is transported to the ash treatment device 3 through the ash recovery pipe 4 for final treatment. Exemplarily, the inert material may be glass powder, glass particles, minerals (such as kaolin and / or dolomite), photosensitive substances, calcium carbonate, and / or (mineral-containing) fly ash, or may be directly introduced into liquid water.
[0024] If necessary, inert gas will be added to the ash recovery barrel 26 through the air supply pipe 25. In addition, the ash recovery device 2 also includes a first-stage valve 22 (for example, a ball valve) and an ash storage bin 23; the ash inlet 21 is connected to the ash recovery barrel 26 through the first-stage valve 22, the ash storage bin 23 and the second-stage valve 24 in sequence. The ash storage bin 23 is used to temporarily store the ash generated by the printing device 1, which is convenient for batch processing of the ash recovery barrel 26 and improves the processing efficiency of the ash recovery barrel 26.
[0025] See also Figure 3 The ash treatment device 3 used in the utility model includes a slag liquid collection box 34 and an ash filter 35 placed inside the slag liquid collection box 34; the ash recovery device 2 is connected to the slag liquid collection box 34 through the ash recovery pipe 4; the ash filter 35 divides the slag liquid collection box 34 into an ash temporary storage chamber and a liquid temporary storage chamber; an ash discharge port 36 is provided at the bottom of the ash temporary storage chamber; and a liquid overflow port is provided on the liquid temporary storage chamber. In order to conveniently allow liquid fluid to enter the slag liquid collection box 34, the utility model has a recovery water pump 33 on the ash recovery pipe 4. Exemplarily, when treating the ash, a light curing method can be used, such as directly mixing the ash with a photosensitive resin, and finally curing it after irradiation with an ultraviolet light lamp. The liquid photosensitive resin is used to solidify quickly under ultraviolet light to solidify the ash, and the ash is recovered as a whole. The ash treatment is safe and reliable, and a single batch or multiple batches of ash can be conveniently treated. Of course, a more direct pressing method can also be used, such as mixing the ash with calcium carbonate and then adding water, and then pressing it into blocks. During the processing, the ash is prevented from contacting with oxygen and fire is avoided. The ash can be processed automatically, which reduces manual participation and saves labor costs.
[0026] The ash treatment device 3 also includes an ash transmission pipe 37 and an ash collection box 38; the ash discharge port 36 is connected to the ash collection box 38 through the ash transmission pipe 37. For example, when the inert material delivery pipe 5 uses water as the medium, in order to save water, the liquid overflow port used in the utility model is connected to the inert material delivery pipe 5 to form a circulation treatment. At this time, the ash treatment device 3 also includes a circulating water tank 31 and a circulating water pipe 32; the liquid overflow port is connected to the circulating water tank 31 through the circulating water pipe 32; a circulating water pump 39 is provided on the circulating water pipe 32; and the circulating water tank 31 is connected to the inert material delivery pipe 5.
[0027] The principle of the utility model is to replace the ash bucket of the filter used in the prior art with the additive manufacturing ash centralized recovery and processing device provided by the utility model. During the printing process, the first-level ball valve 22 of the ash recovery device 2 is in a normally open state, and the ash enters the ash storage bin 23 through the ash inlet 21. After the ash in the ash storage bin 23 is fully collected, the first-level valve 22 is closed and the second-level valve 24 is opened. After the ash enters the ash recovery middle barrel 26, the second-level valve 24 is closed, and the recovery water pump 33 starts to work. Water (or other liquids) enter the ash recovery middle barrel 26 through the inert material delivery pipe 5. The ash is mixed with the inert material, and the ash and the inert material are recovered into the slag liquid collection box 34. During the recovery process, the air supply pipe 25 performs a small amount of pressure supplement to ensure the overall pressure stability of the system. The ash and water in the slag liquid collection box 34, under the operation of the circulating water pump 39, the water enters the circulating water tank 31 through the circulating water pipe 32, and can be subsequently recycled. The ash is blocked by the ash filter 35, and settles into the ash discharge port 36. The settled ash is transported to the ash collection box 38 through the ash transmission pipe 37, and the ash is recovered and packaged. For example, the settled ash can be photocured after passing through the ash transmission pipe 37 or solidified by adding calcium carbonate.
Claims
1. A device for centralized recovery and treatment of additive manufacturing ash, characterized in that: The device for centralized recovery and treatment of additive manufacturing ash comprises an ash recovery device (2), an ash treatment device (3), an ash recovery pipe (4) and an air supply pipe (25); the ash recovery device (2) is connected to the ash treatment device (3) via the ash recovery pipe (4); the air supply pipe (25) is connected to the ash recovery device (2); and the ash recovery device (2) is connected to a printing device (1).
2. The device for centralized recycling and processing of additive manufacturing ash according to claim 1, characterized in that: The ash recovery device (2) comprises an ash feed port (21), a second-stage valve (24) and an ash recovery middle barrel (26); the ash feed port (21) is connected to the printing device (1); the ash feed port (21) is connected to the ash recovery middle barrel (26) through the second-stage valve (24); the ash recovery middle barrel (26) is connected to the ash treatment device (3) through the ash recovery pipe (4); and the air supply pipe (25) is connected to the ash recovery middle barrel (26).
3. The device for centralized recovery and treatment of additive manufacturing ash according to claim 2, characterized in that: The ash recovery device (2) also includes an inert material conveying pipe (5) which is connected to the ash recovery middle barrel (26).
4. The device for centralized recovery and treatment of additive manufacturing ash according to claim 3 is characterized in that: The ash recovery device (2) further comprises a first-stage valve (22) and an ash storage bin (23); the ash inlet (21) is connected to the ash recovery middle barrel (26) via the first-stage valve (22), the ash storage bin (23) and the second-stage valve (24) in sequence.
5. The device for centralized recovery and treatment of additive manufacturing ash according to claim 3 or 4, characterized in that: The ash treatment device (3) comprises an ash transmission pipe (37) and an ash collection box (38); the ash recovery device (2) is connected to the ash collection box (38) through the ash recovery pipe (4) and the ash transmission pipe (37).
6. The device for centralized recovery and treatment of additive manufacturing ash according to claim 5, characterized in that: The ash treatment device (3) further comprises a slag liquid collection box (34) and an ash filter (35) disposed inside the slag liquid collection box (34); the ash recovery device (2) is connected to the slag liquid collection box (34) via an ash recovery pipe (4); the ash filter (35) separates the slag liquid collection box (34) into an ash temporary storage chamber and a liquid temporary storage chamber; an ash discharge port (36) is provided at the bottom of the ash temporary storage chamber; and a liquid overflow port is provided on the liquid temporary storage chamber.
7. The device for centralized recovery and treatment of additive manufacturing ash according to claim 6, characterized in that: The liquid overflow port is communicated with the inert material delivery pipe (5).
8. The device for centralized recovery and treatment of additive manufacturing ash according to claim 7, characterized in that: The ash treatment device (3) further comprises a circulating water tank (31) and a circulating water pipe (32); the liquid overflow port is connected to the circulating water tank (31) through the circulating water pipe (32); a circulating water pump (39) is provided on the circulating water pipe (32); and the circulating water tank (31) is connected to the inert material conveying pipe (5).
9. The device for centralized recovery and treatment of additive manufacturing ash according to claim 8, characterized in that: The ash treatment device (3) further comprises a recovery water pump (33) arranged on the ash recovery pipe (4).
10. The device for centralized recycling and processing of additive manufacturing ash according to claim 9, characterized in that: The ash recovery device (2) is one or more groups.